Why does snapchat create duplicate images when I save a photo?

After I take a photo/video and press the "save to gallery" button before sending out the post, the app saves a copy of the photo/video in the Internal Storage/Snapchat folder in the format "Snapchat-***.jpg". However, it also creates a copy in DCIM/Camera with the name usually a bunch of numbers.

This creates a duplicate in my album. Is there anyway to prevent the duplicate from being created in the DCIM/Camera folder?